Pepperl+Fuchs HD2-GTR-4PA Manual page 26

Installation and Commissioning
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Figure 3.1: Connections of the PROFIBUS Power Hub system
1 PROFIBUS DP connection
2 ACC-MB-HGC link cable connecting Gateway motherboard and
Power Hub motherboard
3 Primary power supply connection
4 Secondary power supply connection
5 ACC-MB-HDC diagnostic link cable connecting neighboring Power
Hubs (optional, read following note)
6 Final motherboard link (optional, read following note)
7 Trunk
8 Terminator
Subject to reasonable modifications due to technical advances.
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